students =[
    ['王杰','尚润星','周昀浩',[['aa','bb',[11,22,33]]]],
    ['肖天梅','刘丹','李昕霞']
]

# 打印aa
print(students[0])
print(students[0][-1])
print(students[0][-1][0])
print(students[0][-1][0][0])

#打印22
print(students[0][-1][0][-1][1])
